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# Copyright 2016-2017 Intel Corporation.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""VSPERF TestPMD implementation
"""
import logging
import pexpect
from conf import settings
from src.dpdk import dpdk
from src.dpdk import TestPMDProcess
from tools.pkt_fwd.pkt_fwd import IPktFwd
_LOGGER = logging.getLogger(__name__)
_VSWITCHD_CONST_ARGS = ['--', '-i']
_TESTPMD_PVP_CONST_ARGS = ['--vdev', 'net_vhost0,iface=/tmp/dpdkvhostuser0',
'--vdev', 'net_vhost1,iface=/tmp/dpdkvhostuser1',]
class TestPMD(IPktFwd):
"""TestPMD implementation (only phy2phy deployment is supported)
This is wrapper for functionality implemented in ${DPDK}/app/test-pmd.
The method docstrings document only considerations specific to this
implementation. For generic information of the nature of the methods,
see the interface definition.
"""
_logger = logging.getLogger()
def __init__(self, guest=False):
vswitchd_args = settings.getValue('VSWITCHD_DPDK_ARGS')
# override socket-mem settings
for tmp_arg in vswitchd_args:
if tmp_arg.startswith('--socket-mem'):
vswitchd_args.remove(tmp_arg)
vswitchd_args += ['--socket-mem ' +
','.join(settings.getValue('DPDK_SOCKET_MEM'))]
if guest:
vswitchd_args += _TESTPMD_PVP_CONST_ARGS
vswitchd_args += _VSWITCHD_CONST_ARGS
vswitchd_args += settings.getValue('TESTPMD_ARGS')
# need to give mbufs a larger size for jumbo frames based on the setting
if settings.getValue('VSWITCH_JUMBO_FRAMES_ENABLED'):
vswitchd_args += ['--mbuf-size={}'.format(int(
settings.getValue('VSWITCH_JUMBO_FRAMES_SIZE')) + 500)]
self._nports = len(settings.getValue('NICS'))
self._fwdmode = settings.getValue('TESTPMD_FWD_MODE')
self._csum_layer = settings.getValue('TESTPMD_CSUM_LAYER')
self._csum_calc = settings.getValue('TESTPMD_CSUM_CALC')
self._csum_tunnel = settings.getValue('TESTPMD_CSUM_PARSE_TUNNEL')
self._testpmd = TestPMDProcess(testpmd_args=vswitchd_args)
def start(self):
"""See IPktFwd for general description
Activates testpmd.
"""
self._logger.info("Starting TestPMD...")
dpdk.init()
self._testpmd.start()
self._logger.info("TestPMD...Started.")
self._testpmd.send('set fwd {}'.format(self._fwdmode), 1)
if settings.getValue('VSWITCH_JUMBO_FRAMES_ENABLED'):
self._testpmd.send('port stop all', 1) # ports must be stopped to set mtu
self._testpmd.send('port config all max-pkt-len {}'.format(
settings.getValue('VSWITCH_JUMBO_FRAMES_SIZE')), 1)
self._testpmd.send('port start all', 1)
for port in range(self._nports):
self._testpmd.send('csum set {} {} {}'.format(
self._csum_layer, self._csum_calc, port), 1)
self._testpmd.send('csum parse_tunnel {} {}'.format(
self._csum_tunnel, port), 1)
self._testpmd.send('start', 1)
def start_for_guest(self):
"""See IPktFwd for general description
Activates testpmd for guest config
"""
self._logger.info("Starting TestPMD for one guest...")
dpdk.init()
self._testpmd.start()
self._logger.info("TestPMD...Started.")
if settings.getValue('VSWITCH_JUMBO_FRAMES_ENABLED'):
self._testpmd.send('port stop all', 1) # ports must be stopped to set mtu
self._testpmd.send('port config all max-pkt-len {}'.format(
settings.getValue('VSWITCH_JUMBO_FRAMES_SIZE')), 1)
# conflicting info if scatter needs to be enabled or not
self._testpmd.send('port config all scatter on', 1)
self._testpmd.send('port start all', 1)
self._testpmd.wait(timeout=60) # port startup can take a few seconds
self._testpmd.send('set portlist 0,2,1,3', 1)
self._testpmd.send('set fwd {}'.format(self._fwdmode), 1)
self._testpmd.send('start', 1)
def stop(self):
"""See IPktFwd for general description
Kills testpmd.
"""
try:
self._testpmd.send('stop')
self._testpmd.wait('Done.', 5)
self._testpmd.send('quit', 2)
self._testpmd.kill()
except pexpect.EOF:
pass
dpdk.cleanup()
# Method could be a function
# pylint: disable=no-self-use
def get_version(self):
"""
Get product version
:return: None
"""
# No way to read TestPMD version
return []
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